Aviation safety issues and actions

Spectrum of flight loads

Issue number: AO-2013-187-SI-04
Who it affects: All operators of M18 aircraft
Issue owner: Operators of M18 aircraft
Transport function: Aviation: General aviation
Background: Investigation Report AO-2013-187
Issue release date: 15 February 2016
Current issue status: Adequately addressed
Issue status justification:

The safety action adequately addresses the safety issue.

Safety issue description

Operation of M18 aircraft with a more severe flight load spectrum results in greater fatigue damage than anticipated by the manufacturer when determining the service life of the M18. If not properly accounted for, the existing service life limit, and particular inspection intervals, may not provide the intended level of safety.

Proactive Action

Action number: AO-2013-187-NSA-049
Action organisation: ATSB
Date: 15 February 2016
Action status: Closed

At the time of publishing this report, there were 12 registered operators of PZL M18 aircraft on the Australian Civil Register. The ATSB has sent a copy of this report to each of those operators to alert them of this safety issue. 

Last update 15 February 2016